The Seiko 2E20-5399 is a watch model based on the 2E20 movement.
Parts List
| ES9W73HN01 | crystal |
| ES9W73HN | crystal |
| 32M29NA1 | crown |
| 0F135BAA1 | case back gasket |
| 0F135BAA | case back gasket |
| 0Z0034B01 | case back gasket - crown and stem gasket |
| 0F145BAA1 | case back gasket |
| 86572330 | crystal gasket - plastic gasket for crystal |
| Z5142G | band - metal band |
| Z5142G-BK3G | clasp - clasp |
| 04V07DHM | others - minute hand |
| 2EA040A3BDG | others - minute hand |
| 1CA025A3BNG | others - hour hand |
| T070AS | others - push pin |
| 2E200530XG14 | others - dial |
| 2E20539975 | others - case |
| 82723550 | others - case ring |
| 1CA022A3BNG | others - hour hand |
Caliber 2E20
